一、加法5+4=3+5=2+3=7+1=5+3=7+4=1+3=4+4=8+2=7+3=7+2=5+1=4+6=3+1=2+6=3+5=6+3=1+6=4+5=6+2=减法8-3=8-5=7-4=8-5=9-7=7-3=6-4=3-2=9-7=7-4=8-2=5-3=6-2=8-4=2-1=9-6=9-4=9-5=7-4=6-5=填空3+()=87+()=9()+4=77+()=87+()=8()+7=102+()=6()+3=8填空()-6=39-()=6()-5=38-()=5()-3=79-()=1()-6=3一、减法9-()=79-()=77-()=45-()=38-()=67-()=35-()=48-()=47-()=15-()=29-()=49-()=89-()=67-()=56-()=35-()=4加法()-4=7()-2=5()-2=4()-4=3()-1=6()-3=3()-6=4()-5=4()-8=1()-6=2()-5=4()-1=7()-3=6()-4=5()-1=3()-6=4三、练习()-5=48-()=4()-6=45-()=4()-1=79-()=7()-2=55-()=29-()=76-()=38-()=4()-1=38-()=6()-4=35-()=3()-5=4